While returning from school u saw a ten year old begging near the traffic signal. you were moved by the scene describe the child in 80_100

Here's my best take; from an authors perspective.

Explanation:

"Finally freakin outta class, gosh Sally was looking good today"  - I say as im starting my engine.

Finally out of class!  Time to go home and play some mothafreaking halo. I was cruising down the street, couldn't get Sally's phattt as..; I mean new earrings out of my head.  

"Stoplight up ahead" I think to myself, barely even aware of what I am doing, too busy thinking about Sally's pha as..

I stop at the stoplight, its a red. I look to my left, and see a child standing at the base of the traffic pole.  He was barely dressed; a new t-shirt  with destroyed pants, shoes, and a missing sock.  He looked like he hadn't showered in days; in fact, he looks no older than ten years old.  

"I did just get paid, I guess I could spare some change." I think to myself.

Feeling generous, hoping Sally is watching somehow. I pull a couple one dollar bills out of my wallet.  I hold it out the window, and beckon the boy over.  He has to cross a lane of traffic to get me, but all the cars are stopped.  

He reaches his hand out to grab the money, he was just a hair away, eyes gleaming with the thoughts of candy and whatever else this ten year old was going to waste my money on. But, just before he could grab the money; this young black man, with dreads and tattoos runs up.  He snatches the money out of my hand.  It looked like he had a cell phone in his other, he was recording himself.  I watch him start to make some distance before I wildly hear him scream

"BNK GANG'

'BNK GANG'

'WHOLE LOTTA GANG POOP,,, YOU KNOW WHAT I MEAN"

And with a 'BN GANGG" he faded into the sun, money and phone in hand.

cockroaches and rats often are a symbol for things that are disgusting or vile. though i don't know which play you are talking about, i hope this !